"Xinhua Daily Telegraph" likes Shandong Rizhao: "Carbon Hui" technology makes the city become green garden flower sea

Shandong Rizhao: "Carbon Exchange" technology makes the city become a green garden flower sea

Xinhua News Agency Jinan Electric (Reporter Guo Xulei) In the summer afternoon, Persian chrysanthemum and Budeng Run are open. This 110,000 square meter rectangular zone, located in the intersection of Yingbin Road and Qingyan high -speed rail in Donggang District, Rizhao City, Shandong Province. It was once full of construction waste and slag, like "urban scars" hurting the city manager.

In March 2021, the "ultra -high temperature and oxygen fermentation" technology introduced by the Zhu Tong team of Northeast University in Rizhao City, and used the "carbon exchange" model to control the "urban sore scar". The "ultra -high temperature and good oxygen fermentation" technology is to use organic solid waste such as municipal sludge and kitchen waste through ultra -high temperature and oxygen fermentation, degrade, transform, and remove organic pollutants and toxic components, and generate nutrient soil. The ratio of the proportion improves the fertilizer of bare land. In this way, it not only realizes the resource and large -scale reuse of organic solid waste, but also can also improve the soil and plant green plants to achieve the fixation of carbon dioxide and the fixation of carbon in organic solid waste.

Donggang District uses the "ultra -high temperature and good oxygen fermentation" technology to integrate nude greening and landscape beautification into one. Flowers and plants with long flowers are planted. From the early test to gradually pushing away, the 430,000 square meters of "urban sores" have become the sea of ​​flowers and green gardens. The four seasons are evergreen, and the three seasons are open.

In the reconstruction area of ​​Chengnan Chengzhong Village, the once demolished ruins have been covered by flowers and plants, becoming a place of leisure in citizens; and a large slag dumplings located in the northeast corner of Donggang City District have become a wedding photography base.

A dose of "carbon exchange" not only healed "urban sore scars", but also reduced the cost of governance. Dong Yan, the director of the Ecological Environment Branch of Donggang District, calculated an ecological account for reporters: through the governance of "carbon exchange", Donggang District can achieve about 2,000 tons of carbon fixation each year and reduce carbon emissions by more than 50,000 tons. In the first half of this year, the environmental air quality integrated index of Donggang District was 3.95, a year -on -year improvement of 2.9 %.

Not only that, the use of the "carbon exchange" governance model also makes municipal sludge "waste into treasure". It is understood that the Sewage Treatment Plant in Rizhao City can produce 200 tons of municipal sludge a day, and the method of landfill and incineration was often used in the past. Today, the use of "ultra -high temperature and good oxygen fermentation" technology can be treated 156 tons per day, and carbon emissions are reduced to one -seventh in the original.